Defy GHK Cu (glycyl L histidyl L lysine) is a naturally occurring copper binding peptide found in human plasma. As levels decline with age, so may its support of the biological processes involved in collagen production, skin Advanced skincare, elevated Now available: Facial Beauty Serum with Copper Peptide (GHK Cu) by Quicksilver Scientific This elegant topical serum features cosmetic grade copper peptide to support smoother, more radiant looking skin and overall GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health Struggling with hair thinning or shedding? Meet GHK Cu, the topical peptide everyone is talking about and NO, it's not an injection! This powerful serum helps: Reduce shedding